Drainage Gutter For Patio. As your home s gutters collect rain they eject it through the nearest downspout. And flow rate of 16 gpm. A more expensive but also more attractive option is to run the drainage under your patio or driveway to deliver the water to a storm drain lawn area or drainage swale this is a common practice and when done right can offer an efficient mostly out of sight way to control gutter drainage.
Where the tube passes by the downspout from the gutter we installed a y fitting and drained the roof water from the gutter system directly into the main drainage line. That line eventually emptied into the low spot in the back yard.
To effectively move the water you will need to grade the base 1 4 inch for each linear foot of your patio surface.
Water pooling on a patio or deck can cause mildew growth can stain concrete and creates slippery conditions. Available in drainage channel with grates and slot drain versions. Once all the parts of the drainage system were installed we covered the tubes with several inches of rock. Use a channel drain system to transfer water to a safe location.